TY - JOUR AU - Kónya, József AU - M. Nagy, Noémi TI - Misleading information on homogeneity and heterogeneity obtained from sorption isotherms JF - ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY J2 - ADSORPTION VL - 19 PY - 2013 IS - 2-4 SP - 701 EP - 707 PG - 7 SN - 0929-5607 DO - 10.1007/s10450-013-9495-6 UR - https://m2.mtmt.hu/api/publication/2403808 ID - 2403808 N1 - Funding details: European Social Fund, ESF Funding details: European Regional Development Fund, FEDER Funding text 1: Acknowledgments The work is supported by the TÁMOP 4.2.1./B-09/1/KONV-2010-0007 project. The project is implemented trough the New Hungarian development Plan, co-financed by the European Social Fund and the European Regional Development Fund. LA - English DB - MTMT ER - TY - JOUR AU - Kónya, József AU - M. Nagy, Noémi TI - Sorption of dissolved mercury (II) species on calcium-montmorillonite: an unusual pH dependence of sorption process JF - JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY J2 - J RADIOANAL NUCL CHEM VL - 288 PY - 2011 IS - 2 SP - 447 EP - 454 PG - 8 SN - 0236-5731 DO - 10.1007/s10967-010-0968-8 UR - https://m2.mtmt.hu/api/publication/1893938 ID - 1893938 LA - English DB - MTMT ER - TY - JOUR AU - Kónya, József AU - M. Nagy, Noémi TI - Isotherm equation of sorption of electrolyte solutions on solids: how to do heterogeneous surface from homogeneous one? JF - PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING J2 - PERIOD POLYTECH CHEM ENG VL - 53 PY - 2009 IS - 2 SP - 55 EP - 60 PG - 6 SN - 0324-5853 DO - 10.3311/pp.ch.2009-2.04 UR - https://m2.mtmt.hu/api/publication/1354712 ID - 1354712 AB - It is a rather common phenomenon in the literature, that the surface accumulation processes are treated by different isotherm equations without taking into account the mechanism of the sorption processes. In this paper, a model calculation is presented for homovalent ion exchange process on energetically homogeneous surface. It reveals all incorrect conclusions which can be drawn in this way. LA - English DB - MTMT ER - TY - JOUR AU - Kónya, József AU - M. Nagy, Noémi TI - The effect of complex-forming agent (EDTA) on the exchange of manganese ions on calcium-montmorillonite - I. Reaction scheme and calcium-montmorillonite Na(2)EDTA system JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 136 PY - 1998 IS - 3 SP - 299 EP - 310 PG - 12 SN - 0927-7757 DO - 10.1016/S0927-7757(97)00362-2 UR - https://m2.mtmt.hu/api/publication/1354734 ID - 1354734 N1 - WoS:hiba:000075115000002 2019-03-02 07:37 folyóirat nem egyezik, kötet nem egyezik, füzet nem egyezik, első oldal nem egyezik AB - The possible reactions in the calcium-montmorillonite-Mn(ClO4)(3)-Na2EDT system are shown. In addition, the effect of EDTA on the distribution of calcium ions between the surface of montmorillonite and solutions with different pH values and EDTA concentrations is studied. The results are interpreted by the principles of Schubert's method for the simultaneous ion exchange and complex-formation reactions. The significant role of pH is observed. An expression is deduced which is suitable for the calculation of the ratio between "free" calcium ions and total calcium concentration of the solution if we know pH, the total concentration of the complex-forming agent, its pH-dependent a parameter and the stability constants of its complexes. (C) 1998 Elsevier Science B.V. LA - English DB - MTMT ER - TY - JOUR AU - M. Nagy, Noémi AU - Kónya, József AU - Urbin, Z TI - The Competitive Exchange of Hydrogen and Cobalt Ions on Calcium-Montmorillonite JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 121 PY - 1997 IS - 2-3 SP - 117 EP - 124 PG - 8 SN - 0927-7757 DO - 10.1016/S0927-7757(96)03844-7 UR - https://m2.mtmt.hu/api/publication/1354521 ID - 1354521 N1 - WoS:hiba:000075115000001 2019-03-02 07:33 év nem egyezik LA - English DB - MTMT ER - TY - JOUR AU - M. Nagy, Noémi AU - Kónya, József TI - The interfacial processes between calcium--bentonite zinc ion JF - COLLOIDS AND SURFACES J2 - COLLOID SURFACE VL - 32 PY - 1988 SP - 223 EP - 235 PG - 13 SN - 0166-6622 DO - 10.1016/0166-6622(88)80018-0 UR - https://m2.mtmt.hu/api/publication/1354157 ID - 1354157 LA - English DB - MTMT ER -